Pet feeder



FIG. 1 is a perspective view taken from the top, front and left side of the pet feeder showing my design thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a front elevation view thereof; and

FIG. 5 is a rear elevation view thereof. 

The ornamental design for a pet feeder, substantially as shown. 